Overview
NHT-3D Wide Flow Electromagnetic Radiation Measters is a hand-held portable high-precision device that enables high and low frequency electromagnetic radiation measurements, which can meet the precise detection requirements in various complex environments. NHT-3D has a powerful FFT spectrum analysis mode with a frequency range to DC-400KHz. Within the low frequency range, the electromagnetic field limit is directly related, so the simple broadband measurement method does not accurately measure the low frequency signal, and the spectrum analysis mode can solve the problem of low frequency measurement accuracy, while the low frequency signal is frequency Accurate display of signal strength.
The NHT-3D broadband electromagnetic radiation measuring instrument is ideal for outdoor on-site detection, and the built-in 9000mAH lithium battery can be used continuously for up to 30 hours and fast charging can be completed. The NHT-3D design concise operation is simple, and the connection probe does not require various settings to make electromagnetic radiation measurements, selecting different measurement probes to easily respond to various complex environment electromagnetic radiation measurements. Waves software software provides powerful signal processing analysis capabilities, automatic weighting peak computing (WP) based on ICNIRP 2010, while displaying standard limits.
Product features
Electric field, magnetic field probe automatically selects the sampling data record of the model 65536
One host can replace a variety of probes 9000mAh lithium battery for up to 30 hours (close backlight)
Rugged magnesium aluminum alloy housing multi-thread monitoring and logging function
Integrated temperature sensors and GPS WAVES test software, powerful
Static magnetic field measurement function provides optical interface / USB interface
Application range
Electric power transmission system, household appliance, electric high-speed rail, charge pile, etc.
Communication base station, radar, navigation, satellite earth station, digital microwave station, etc. Video electromagnetic field monitoring
Long, medium and short-wave broadcast TV equipment environmental electromagnetic field detection
Wireless charging equipment environmental electromagnetic radiation detection
Industrial high-frequency induction equipment, high-power power communication equipment, nuclear magnetic resonance MRI and other engineering electromagnetic environment detection
Environmental electromagnetic radiation detection of occupational health workplace
Environmental electromagnetic radiation assessment (building environmental assessment, communication base station EIA)
Aerospace defense electronic interference against assessment
Static magnetic field research (earthquake monitoring)
Electromagnetic radiation measurement applicable standards and methods:
HJ / T10.2-1996 "Radiation Environment Protection Management - Electromagnetic Radiation Monitoring Instrument and Method"
GB8702-2014 "Electromagnetic Environment Control Limit"
GJB5313-2004 "Electromagnetic radiation exposure limit and measurement method"
HJ681-2013 "AC Transforming Engineering Electromagnetic Environment Monitoring Method"
"DL / T988-2005" High-voltage communication overhead transmission line, substation power frequency electric field and magnetic field measurement method "
DL / T1187-2012 "1000kV overhead transmission line electromagnetic environment control value"
GB / Z-T 189.3-2018
"Workplace Physical Factors Measure 1 Hz-100KHz Electric Field and Magnetic Field"
GB / Z-T 189.1-2007
"Measurement of physical factors of workplace Part 1 UHV radiation"
GB / Z-T 189.2-2007
"Workplace Physical Factors Measurement Part 2 High Frequency Electromagnetic Field"
GB / Z-T 189.3-2007
"Workplace Physical Factors Measurement Part 3 Main Frequency Electric Field"
GB / Z-T 189.5-2007
"Workplace Physical Factors Measured Part 5 Microwave Radiation"
GB / T32577-2016 "Magnetic Field Strength Measurement Method Produced by Electronics and Electrical Equipment in Rail Transit"
TB / T 3551-2014 "Low Frequency Magnetic Field Limits and Measurement Methods in EMU"
GB / T37130-2018 "Measurement Method of Vehicle Electromagnetic Field relative to human bodies"
GB / TXXXXXX "Electric Vehicle Wireless Charging Electromagnetic Exposure Limit and Test Method"
DB44 / T 1472-2014 "Electromagnetic Pollution Limit and Measurement Method of Electric Vehicles"
Multithreaded monitor / data record
Long-term monitoring storage data: By combining the "Shift" and "MONIT" keys, the countdown begins executing long-term monitoring of up to 8 data acquisitions, automatically saving time interval default 5s, adjustable through software. Up to 65536 values can be saved. This feature is ideal for monitoring the low frequency electromagnetic waves such as high-voltage transmission lines, substations, etc., which help users observe the long-term effects of these low frequencies of electromagnetic waves. The user can exit this mode by pressing any key or exits automatically.
Real-time remote control: NHT-3D integrated optical fiber output port and PC side WAVES remote control software, this feature is suitable for the user measurement process to effectively avoid other interference factors on measurement results (such as power frequency electric field strength measurement, radio wave in the dark room EMC test, etc.). The software has a complete NHT-3D display unit that simultaneously displays the measurement and historical measurement data curve. In addition, the data saved in the instrument can be downloaded to the PC at any time by software to perform more advanced analysis.
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